Marathon is a social networking app designed for avid television watchers. It allows users to track their progress through TV series and engage in discussions with friends. The app is available for iPhone users and is free to download.

The main focus of Marathon is user activity, with friends being front and center on the home screen. Users can see what their friends have reviewed, what shows they are currently watching, and any new lists they have created. This feature enhances the social aspect of the app and encourages interaction among users.

One of the key features of Marathon is the "Up Next" page, which allows users to stay up-to-date with the series they are currently watching. Users can develop their profiles and build up their stats, such as average rating, episodes watched, and total time watched. This adds a gamification element to the app, making it more engaging for users.

Overall, Marathon is a user-friendly social networking app that caters to the needs of TV enthusiasts. It provides a platform for users to connect with friends, track their TV series progress, and engage in meaningful discussions.